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T UNITED STATES PATENT @Trion,

GEORGE ALMON D PERKINS, OF ESSEX, MASS, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO HIMSELF AND GEORGE ARTHUR FULLER, OF SAME PLACE.

BOOT AND SHOE NAILING MACHINE;

EPEGIFICATION forming part of Letters Patent No. 289,443, dated December4, 1883. Application filed May 1, 1883. (N model.)

To all whom it may concern:

Be it known that I, GEORGE ALMOND PER- KINS, of Essex, in the county ofEssex, of the Commonwealth of Massachusetts,have invented a new anduseful Improvementin Machinery for Nailing Shoes; and I do herebydeclare the same to be described in the following specification, andrepresented in the accompanying drawings, of which t Figure l is a frontelevation, and Fig, 2 a side view, of a shoe-nailing machine ofwellknown construction provided with my invention, the nature of whichis defined in the claims hereinafter presented. tion taken through thedriving-pulley and shaft and the friction-clutch of the machine.

Prior to my invention the cam by which the driving-pulley of the machineis moved into 7 thereby exerting not only a power with his hands, butone with his foot, a constant repetition of which requires anexpenditure of much labor on his part, necessarily attended with fatigueto him.

With my improvement the pedal is entirely dispensed with, and themachine is set in action by the force exerted by the attendant inholding the shoe up to the nipple, for when i he does so he bears theshoe against a lever, and moves the latter so as to cause thedriving-pulley to be clutched to the drivingshaft, and, consequently,the machine to be set in operation to drive the nail. Thus it will beseen that all the labor and attention required to work the plate issaved to the operator by my invention, and, besides, the danger ofaccident to him by reason of slipping of the shoe, so as to cause hishand to be wounded or injured by the machine-a matter of not infrequent0c Fig. 3 is a sec currence-is overcome. So, before my invention, therehas been, in a machinefor driving fastenings, the combination of aspider and a driving-pulley witha foot or proj ection,and mechanismconnectingitwiththespider,whereby, upon the upward movement of thesaid'foot, the machine was set in operation, allbeing as represented inthe United States Patents Nos. 246,487, 251,755, and 254,421. All such,however, differ from my improvement, which, though for a like purpose,is simpler in its construction and mode of operation.

In the drawings, a shoe-nailing machine is shown at A, it being of akind well known and in common use in shoe-factories in Massachusetts andelsewhere. It is employed to nail the grooved outer sole to the lastedupper and inner sole of a shoe, preparatory to the removal of the lastfrom them, and the subsequent sewing of the soles and upper by a Mo- Kaysewing-machine. This machine feeds the nail-wire at proper intervalsinto a channel to receive the nail, separates the nail from the wire,and finally drives it through the nipple atthe lower end of the channel,and thence into the shoe held up to such nipple. The driving-shaft ofthe machine is shown at a, its driving-pulley at b, and friction-clutchat c, the cam for moving the pulleyinto engagement with the clutch beingrepresented at d. On pulling downward the said cam it is moved againstastationary cam or inclined surface, 6, whereby such cam d is moved soas to force the'driving-pulley up to the clutch, a spring, f, producinga counter movement of the pulley at the proper time.

In carrying out my invention, I apply to the cam-rod g a lever, B,fulcrumed to the frame of the machine, and arranged as represented. Therod extends through the shorter arm of the lever, and is screw-threadedto receive two nuts, h and i, one of which is above and the other belowthe lever. The lever is to move vertically, its fulcrum being at k."When the longer arm of thelever is at its lower position, the shorterarm brings up against a stop or abutment, Z, fixed to the frame of themachine. The longer arm of the said lever extends nearly to thenail-discharging nipple m of the machine, and is there provided with acurved prong, n,which, projecting down from the lever in manner asshown, is to enter the stitching-groove of the shoe-sole. Furthermore,there is fixed to the machineframe, and to the shorter arm of the leverB, a spiral spring, 0, which is to raise the shorter arm, in order todepress the longer arm of the lever, and to force upward thecam d, toenable the spring f to act so as to move the driving-pulley away from orout of engagement with the friction-clutch. Then the pulley isdisengaged from the clutch, such pulley will not revolve the shaft, butwill revolve freely on it.

In using the machine with my improvement, the attendant, with his handsholding the shoe, brings it up to the lever B, so as to cause the prongthereof to enter the stitchinggroove of the sole, or to touch the solenear to where he may desire to have a nail driven into it. Having donethis, he is to press the shoe upward, so asto cause the driving-pulleyto be put in engagement with the frictionclutch, and as a consequencethe machine to drive a nail through the nipple and into the shoe solesand upper. Thus it will be seen that the force necessary to keep theshoe up to the nipple is also utilized in putting the driving-pulleyinto engagement with the clutch.

lVith my improvement I not only dispense with a pedal and the attentionand labor incident to its working, but the heavy tripod as generallyused for supporting it and the machine.

I claim in the nailing-machine 1. The combination of the lever B,screwthreaded cam rod nuts h i, cams d and c, and spiral spring 0,arranged with and adapted to the nipple m, and frame, driving-shaft andpulley and clutch of the machine, substantially and to operate as setforth.

2. The combination of the stop or abutment GEORGE ALMOND PERKINS.

lVitnesses:

R. H. EDDY. S. N. PIPER.

